Influence of Co Removal for Improving Diamond Films Adhesive on WC-Co Substrates by DC-PCVD

Yan Feng Liu; Long Cheng Yin; Li Xin Zhao; You Jin Zheng

doi:10.4028/www.scientific.net/AMR.538-541.7

Paper Titles

The Fabrication of La_0.9Sr_0.1CoO₃ Thin Films and its LITV Effect Applications
p.3

Influence of Co Removal for Improving Diamond Films Adhesive on WC-Co Substrates by DC-PCVD
p.7

Influence of Sputtering Pressure for Radio Frequency Magnetron Sputtering (103) Oriented AlN Films on (100) Silicon Substrate
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Study on the Titanium Film in the Pressure Self-Adaptive Water-Tight Junction Box of Underwater Vehicle
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Research and Development of Parylene Thin-Film Deposition and Application for Water-Proofing
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A Novel Polyethersulfone Flat Sheet Membrane Prepared from a Lower Critical Solution Temperature System
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A Development of Polarization Experimental Processes and Analysis Mechanical Behavior for COC and PVDF Films
p.33

Fabrication and Characterization of Ga and N Co-Doped SnO₂ Films by MOCVD
p.37

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Influence of Co Removal for Improving Diamond...

Influence of Co Removal for Improving Diamond Films Adhesive on WC-Co Substrates by DC-PCVD

Abstract:

The DC plasma chemical vapor deposition (DC-PCVD) method was a promising technique to fabricate CVD diamond coatings in industry, because it has many good properties, such as high grown rate of diamond films, big grown area, high qualities, and cost effective. In the present work, we synthesized diamond films on cemented carbide (YG6) substrates, and studied the different nitric acid aqueous solution treatment durations influence on diamond nucleation stage. The results indicated that well-chosen nitric acid aqueous solution treatment durations should be selected. For too short treatment times, the residual Co will promote the carbon transform from diamond metastable phase into graphite stable phase. On the other side, too long treatment times will consume too much Co, which will lead to the shortage of cohesive body, and finally the crackers in the bulk propagated and peeled off with the diamond films well grown on WC grains.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

7-11

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.7

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Online since:

June 2012

Authors:

Yan Feng Liu, Long Cheng Yin, Li Xin Zhao, You Jin Zheng

Keywords:

Cemented Carbide, Co Influence, DC-PCVD, Diamond Film

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